You manage a domain controller that runs Windows Server 2008 R2 and the DNS Server server role.The DNS server hosts an Active Directory-integrated zone for your domain.You need to provide a user with the ability to manage records in the zone. The user must not be able to modify the DNS server settings.What should you do？（）

• A、Add the user to the DNSUpdateProxy Global security group.
• B、Add the user to the DNSAdmins Domain Local security group.
• C、Grant the user permissions on the zone.
• D、Grant the user permissions on the DNS server.